document.write( "Question 855641: if you have a room that is 4m x 5m and you need to replace the ceiling tiles, assuming that it is a perfect fit, and the tiles are 50cm x 50cm how many tiles do you need? \n" ); document.write( "
Algebra.Com's Answer #515485 by stanbon(75887)\"\" \"About 
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if you have a room that is 4m x 5m and you need to replace the ceiling tiles, assuming that it is a perfect fit, and the tiles are 50cm x 50cm how many tiles do you need?
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\n" ); document.write( "4m = 400 cm
\n" ); document.write( "5m = 500 cm
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\n" ); document.write( "Area of ceiling 400*500 = 200000 cm^2
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\n" ); document.write( "Area of a tile = 50^2 = 2500 cm^2
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\n" ); document.write( "# of tile needed = 200000/2500 = 80
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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